Portrait of John W. Park
ucsf logo

John W. Park, MD

Breast Medical Oncology
Breast Cancer Mission Bay
415-353-7070
Portrait of John W. Park
Portrait of John W. Park
ucsf logo

John W. Park, MD

Breast Medical Oncology
Breast Cancer Mission Bay
415-353-7070

On this page

About me

Dr. John W. Park is an oncologist who specializes in breast cancer treatment and research.

In his laboratory, Park works to develop novel technologies for studying and treating cancer. His research includes investigating new forms of immunotherapy such as immunoliposomes (antibodies paired with vesicles similar to human cell membranes) and vaccines that target cancer cells. He also conducts clinical trials of new cancer treatments.

Park has been a visiting scientist at Genentech, where he performed research on HER2/neu, a protein produced in excessive amounts by some breast cancer cells, and Herceptin, a new treatment that acts as an antibody to HER2/neu.

Education & training

Board certification

  • Medical Oncology, American Board of Internal Med/Medical Oncology
  • Internal Medicine, American Board of Internal Medicine

Fellowship

  • Hematology - Oncology, UCSF Graduate Medical Education

Residency

  • Internal Medicine, University of California at Los Angeles GME

Internship

  • Internal Medicine, University of California at Los Angeles GME

Degree

  • MD, Stanford University School of Medicine

My expertise

Locations

    Reviews

    Average rating

    4.9
    4.9 out of 5 Stars
    292 ratings
    About provider reviews

    Showing 1-6 of 71 reviews

    Sort by
    • 5 out of 5 Stars
      December 10, 2025

      Dr. Park was superb in proving me a second opinion. World class. He took extensive time to review my case with me. My experience exceeded any expectations that I had.

    • 4.1 out of 5 Stars
      December 5, 2025

      Dr Park was pleasant clear and attentive to my concerns. I was happy with the appointment as far as interaction went.

    • 5 out of 5 Stars
      November 19, 2025

      Good experience!!

    • 5 out of 5 Stars
      October 23, 2025

      Dr. Park really explained my cancer diagnosis and made me feel calmer about the next steps and prognosis

    • 5 out of 5 Stars
      October 13, 2025

      Dr Park is the best oncologist

    • 5 out of 5 Stars
      October 4, 2025

      I really appreciated Dr. Park's professionalism and understanding my anxiety about my diagnosis. I felt so much better after our meeting.

    Please check with your health insurance plan regarding coverage for this type of care. Not all providers at UCSF Health are covered by every insurance plan.

    For informational purposes only, a link to the federal Centers for Medicare and Medicaid Services (CMS) Open Payments web page is provided here. The federal Physician Payments Sunshine Act requires that detailed information about payment and other payments of value worth over ten dollars ($10) from manufacturers of drugs, medical devices, and biologics to physicians and teaching hospitals be made available to the public.